Temperature And Humidity Sensor Htu21D Pcba

Digital Humidity Sensor with the interface to MCU is I2C HTU21D
Model Number: HTU21D

1.Features:
· DFN type package
· Relative Humidity and Temperature Digital Output, I²C interface
· Fully calibrated
· Lead free sensor, reflow solderable
· Low power consumption
· Fast response time and very low temperature coefficient

2.Description
HTU21D, the new humidity and temperature sensor of MEAS is about to set new standards in terms of size and
intelligence: Embedded in a reflow solderable Dual Flat No leads (DFN) package of 3 x 3mm foot print and 1mm
height it provides calibrated, linearized signals in digital, I²C format.
HTU21D sensors are dedicated humidity and temperature plug and play transducers for OEM applications
where reliable and accurate measurements are needed. Direct interface with a micro-controller is made possible
with the module humidity and temperature digital outputs. HTU21D sensors are low power consumption
designed for high volume and cost sensitive applications with tight space constraints.
Every sensor is individually calibrated and tested. Lot identification is printed on the sensor and an electronic
identification code is stored on the chip – which can be read out by command. Furthermore, the resolution of
HTU21D sensor can be changed by command (8/12bit up to 12/14bit for RH/T), low battery can be detected and
a checksum improves communication reliability.
With made improvements and the miniaturization of the sensor the performance-to-price ratio has been
improved – and eventually, any device should benefit from the cutting edge energy saving operation mode.

3.Description
.Full interchangeability with no calibration required
in standard conditions
· Instantaneous desaturation after long periods in
saturation phase
· Compatible with automatized assembly processes,
including Pb free and reflow processes
. Individual marking for compliance to stringent
traceability requirements

4 APPLICATIONS
· Printers
· Humidifier
· Automotive
· Home Appliance
· Medical

"The TandD RTR-574-S Wireless Temperature Humidity Light Data Logger
The RTR-574-S Wireless Temperature Humidity Light Data Logger includes two sensors that simultaneously measure and record illuminance / UV intensity and temperature/humidity. This high accuracy data logger allows for the measuring and recording of the above items in various places such as facilities where people gather, where important documents and fine arts are being stored or displayed, where food and drink are being stored. Also, cumulative illuminance and the cumulative amount of UV light can be easily viewed even without stopping recording."

Our most advanced intelligent spot detectors, multi-criteria/multi-sensor devices use multiple sensors to detect various conditions in an environment sensing a wider range of fires with greater accuracy.

Features & Benefits:

Multi-Criteria/Multi-Sensor smoke detection
Unique ability to detect major elements of a fire
Highest nuisance alarm immunity
Advanced algorithms interpret and respond to multiple inputs

Relative Humidity & Temperature Sensor

The sensor SEN-TH integrate sensor elements plus signal processing in compact format and provide a fully calibrated digital output. A unique capacitive sensor element is used for measuring relative humidity while temperature is measured by a band-gap sensor. The applied CMOSens�® technology guarantees excellent reliability and long term stability. Both sensors are seamlessly coupled to a 14bit analog to digital converter and a serial interface circuit. This results in superior signal quality, a fast response time and insensitivity to external disturbances (EMC).

Humidity sensor, as an important chemical sensor, which is widely used in fields of warehousing, industry production, and process control, environmental monitoring, home appliances and meteorology etc.


inner: plastic foam
outside: carton

Htm2500/htm2500lf relative temperature and humidity sensor

* hermetic housing
* humidity calibrated within +/-2% @55%rh
* temperature measurement through ntc 10koohms +/-3% direct output
* small size product
* typical 1 to 4 volt dc output for 0 to 100%rh at 5vdc

Htm2500lf relative temperature and humidity sensor description
Based on the rugged hts2010 humidity / temperature sensor, htm2500 is a dedicated humidity and temperature transducer designed for oem applications where a reliable and accurate measurement is needed. Direct interface with a micro-controller is made possible with the module's humidity linear voltage output.

Htm2500lf relative temperature and humidity sensor features
* full interchangeability
* high reliability and long term stability
* not affected by water immersion
* ratiometric to vlotage supply
* suitable for 3 to 10 vdc supply voltage
Humidity sensor specific features
* instantaneous de-saturation after long periods in saturation phase
* fast response time
* high resistance to chemicals
* patented solid polymer structures
Temperature sensor specific features
* stable
* high sensitivity

Htm2500lf relative temperature and humidity sensor applications
* industrial
* process control
* hygrostat
* data logger

HTG3535CH Humidity and Temperature Sensor Module with voltage output

DESCRIPTION
Based on the rugged HUMIREL humidity sensor, HTG3535CH is a dedicated humidity and temperature plug and play transducer designed for OEM applications where a reliable and accurate measurement is needed. Direct interface with a micro-controller is made possible with the moduleâ??s humidity linear voltage and direct NTC outputs. HTG3515CH is designed for high volume and demanding applications.

FEATURES
* Voltage Supply: 5 Vdc
* Nominal Output @55%RH: 2.401 - 2.559 V
* Humidity Average Sensitivity: +26 mV/%RH
* Current consumption: 1.2 mA dc
* Humidity Measuring Range: 0 - 100 %RH
* Humidity Operating Range: 0 - 100%RH
* Temperature Operating Range: -40 - 110'C
* Suitable for small bulk assembly
* Product free from Lead, Cr (6+), Cd and Hg. Compliant with RoHS
* Full interchangeability. Better than +/-3%RH and +/-0.25'C
* Humidity calibrated within +/- 3% RH @ 55% RH
* Temperature measurement through NTC direct output
* Demonstrated reliability and long term stability
* Reliability not affected by repeated condensations

APPLICATIONS
* Automotive
* Home Appliance
* Printers


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Frequency Output Temperature and Humidity Sensor HTF3226LF

DESCRIPTION
Based on the rugged HS1101LF humidity sensor, HTF3226LF is a dedicated humidity and temperature transducer designed for OEM applications where a reliable and accurate measurement is needed. It features a miniature connector for easy, cost-effective mechanical mounting. Direct interface with a micro-controller is made possible with the moduleâ??s linear frequency output.

FEATURES
* Full Lead free product
* Calibrated within +/-5% @55%RH
* Small size and very cost effective
* Miniature connector (JST)
* 10kOhms +/-3% NTC temperature sensor (1% optional)
* The best combination of cost effectiveness and performance
* Stable, linear proportional frequency output from 10% to 95%RH
* Stable and reproducible characteristics with temperature
* High reliability and long term stability
Humidity Sensor Specific Features
* Instantaneous de-saturation after long periods in saturation phase
* Fast response time
* High resistance to chemicals
* Not affected by water immersion
* Patented solid polymer structure
Temperature Sensor Specific Features
* High quality thermistor
* Stable
* High sensitivity

APPLICATIONS
* Printers
* Home Appliance


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